Electrically heated paint scraper



Dec, 20, 1949 w. M. QOLLINS 4919713 ELECTRICALLY HEATED PAINT SCRAPEROriginal Filed Jan. 1, 1942 IN VEN TOR.

o @QZ/M272 M 00am@ BY m @y/wwf@ ATfD R N EYS Patented Dec. 20, 1.949

UNITED STATES PATENT OFFICE ELECTRICALLY HEATED PAINT SCRAPER William M.Collins, Kansas City, Kans.

substituted for application Serial No. 641,115, `lanuary 14, 1946, whichwas substituted for my application Serial No. 424,210, `ianuary 1, 1942.This application July 19, 1948, Serial No. 39,532

4 Claims. 1

This invention relates to paint removing devices, and its general objectis to provide a device which makes it possible to remove paint, varnishand the like from painted surfaces in an easy and expeditious manner, inthat the device includes heating means for softening the paint, andmeans for scraping the softened paint from the surface.

A further object is t provide a device of the character set forth, thatis light in weight, can be easily operated, is simple in construction,inexpensive to manufacture, and extremely efficient in use and service.

This invention also consists in certain other features of Constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in vthe appended claims.

This application is a substitute for my abandoned application No.641,115, filed January 14, 1946, which was a substitute for my abandonedapplication No. 424,210, ledJanuary 1, 1942.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:

Figure 1 is a side elevation of the device which forms the subjectmatter of the present invention.

Figure 2 is a sectional View taken approximately on line 2-2 of Figure3, looking in the direction of the arrows.

Figure 3 is a top plan View of the device.

Figure 4 is a sectional view taken approximately on line 4 4 of Figure1, looking in the direction of the arrows.

Figure 5 is an end View of the device.

Figure 6 is a sectional View taken approximately on line 6 6 of Figure2, looking in the direction of the arrows.

Figure 7 is a detail View illustrating one of the scraping blades, andthe associated elements thereof, including the springs, for holding theblade in a normal raised position.

Referring to the drawings in detail, it will be noted that my deviceincludes a hollow elongated rectangular casing like body made up of abase plate l, side walls 2 that rest upon the upper faces of the baseplate along the longitudinal edges thereof, a top wall 3 and end walls4, the latter being formed with inwardly directed side flanges 5 alongthe height thereof, and the anges are secured to the side walls bykerfed bolt and nut connections 6 for disposing the end walls in spacedrelation to the ends of the top and side walls and the base plate, toprovide guides for vertical movable scraping blades '1, which will belater described.

The top wall rests upon the upper edges of the side walls and isremovably secured thereto by a pair of upright rods il that are xed toand rise from the base plate centrally of the side edges thereof andadjacent its ends, the rods having threaded upper ends that extendthrough openings in the top wall, and nuts are threaded on the upperends of the rods in bearing relation with the top wall, as shown inFigure 2. By that construction, it will be seen that the base plate andtop wall are removably xed to the side walls, so that ready access maybe had to the interior of the body.

Resting on and secured to the base plate along the length thereof, byscrews or the like is a rectangular heating plate 9 having fixed theretoan elongated heating unit that includes a flat housing Il] of insulatingmaterial, tapered toward one end and enclosing a heating coil l! of theusual resistance type, the ends of the coil being connected to bindingposts i2 at the ends of the housing IEB and one of the ends ofconductors i3 are likewise connected to the posts by wing nuts I4. Theopposite ends of the conductors are connected to a switch, preferably ofthe toggle type, shown, and which includes an elongated casing setwithin a slot along the length of the top wall, the casing being formedwith attaching ears i6 at the ends thereof and the ears are fixed to thetop wall by screws or the like. Conductors Il are likewise connected tothe switch for connecting the device in circuit with a suitable sourceof electric current, and for that purpose, the conductors I1 preferablyhave a conventional plug, not shown, connected thereto.

The device is provided with a handle that includes a gripping member i3supported along the longitudinal center of the top wall directly abovethe switch, so that the switch can be conveniently operated by the handof the user gripping said member IB, and the latter is mounted on a rodI9 that is secured to and bridges the upper ends of the upright portionsof a pair of spaced supporting brackets 29 that have their lower endportions bent outwardly toward the ends of the top wall to provide ears2| fixed to the top wall, preferably by bolt and nut connections 22.

The device in the form shown includes a pair of scraping blades 1, oneat each end of the body and the blades are slidably mounted in theguides spaces previously referred to. The blades are of rectangularformation, as l est slr-.own in Figure '7, and are normally held withtheir lower beveled edges disposed substantially hush with the baseplate, as shown in Figure l, by vertically arranged coil springs 23,there being a pair of coil springs for each plate, which have theirlower ends connected to pins secured to the blades adjacent the sideedges thereof, and the upper ends of the springs are connected to pinssecured to the end walls. The pins extend inwardly from the blades andend walls, lor disposing the springs within the body, as shown in Figure2.

The base plate has rounded headed screw elements secured theretoadjacent its corners, and the heads of the elements provide gliders forelevating the base plate from the surface being treated, as well asfacilitates free movement of the device along said surface.

jhe :blades are manually movable against the action oi the springs fordisposing the beveled edges thereof at any desired position below thebase plate, as will be apparent from Figure 2, and for that purpose,each blade has a pair of uprights ill secured to and rising therefrom.Secured to and bridging the upper ends of the uprights is a bar ES thathas the outer end of a lever 28 resting thereon. A lever is of courseprovided for each blade, and the levers are pivotally connected to andbetween a pair o1" brackets il@ that are secured to the ears 2i by iebolt and nut connections 22. The levers extend through slots 3l arrangedvertically in the upright portions of the brackets Eil and the inner endportions of the levers are bent laterally to provide handles 32. By thatarrangement of the levers, it `vill be seen that the user of the devicecan conveniently manipulate the same by the fingers of the same handused in gripping the member i8.

In order to prevent the handle and levers from becoming unduly heated,the body is filled with suitable heat insulating material 33, such asfiber asbestos or the like.

From the above description and disclosure in the drawing, it will beobvious that in the use of my device, it is applied to a painted surfaceand that the heat from the base plate will soften the paint, thence theblades are lowered and held against said surface and the device isreciprocated or otherwise moved for scraping the paint therefrom.

1t is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claims.

What I claim is:

l. A paint removing device comprising a body including a base plate,means within the body for heating the base plate, a handle secured toand rising from the body for moving the device relative to a surface tobe treated, movably mounted scraping blades carried by the body, springsconnected to the blades and body respectively for normally holding theblades out of scraping position, upright means secured to the blades andextending above the body, and manually operable levers pivot/allyconnected to the body and engaged with the upright means for securingand holding the blades to and in scraping position.

2. A paint removing device comprising a body including a base plate,electrical heating means within the body and secured to the base platefor heating the latter, a handle including slotted brackets secured toand rising from the body in spaced relation to each other, grippingmeans secured to and extending between the brackets, movably mountedscraping blades carried by the body and means anchored within the bodyfor normally holding the blades out of scraping position, a pair ofspaced uprights secured to each blade, means secured to and bridging theupper ends of each pair of uprights, manually operable handled leversengaged with the bridging means for moving and holding the blades to andin scraping position, and said levers extending trough the slots of thebrackets for disposal adjacent to and below the gripping means.

3. A paint removing device comprising an elongated rectangular hollowbody including a base plate and top, side and end walls, said end vwallsbeing xed to the side walls and being spaced from the ends thereof, thebase plate and the top wall to provide guides, means within the body forheating the base plate, means secured to the base plate adjacent thecorners thereof to elevate the saine above a surface to be treated, ahandle secured to and rising from the top wall, scraping blades mountedfor slidable movement in and through the guides and having beveled loweredges, springs anchored within the body and connected to the blades fornormally holding the latter with the beveled edges above the bottom faceof the base plate, and manually operable means for moving the bladesagainst the action of the springs for disposing and holding the bladeswith the beveled edges thereof below the .base plate.

4. A paint removing device comprising a body including a base plate andtop, side and end walls, said end walls being spaced from the ends ofthe base plate and the top and side walls, a heating plate fixed to theupper face of the base plate, an electric heating unit fixed to theheating plate, a switch mounted on the top wall and being in circuitwith the heating unit, a handle secured to and rising from the top walland overlying the switch, scraping blades mounted for slidable movementin and through the space intermediate of the end walls and the ends ofthe base plate, top and side walls and having beveled lower edges,springs connected to the blades for normally holding the latter with thebeveled edges above the bottom face of the base plate, manually operablemeans for moving the blades against the action of the springs for movingand holding the blades with the beveled edges thereof below the baseplate, and heat insulating material filling said body to protect thehandle and manually operable means from becoming unduly heated.

WILLIAM M. COLLINS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 162,710 Storke Apr. 27, 18752,223,331 Roesch et al. Nov. 26, 1940 2,256,648 Preisser Sept. 23, 1941

